CN115334555A

CN115334555A - Beam failure recovery method, terminal and network side equipment

Info

Publication number: CN115334555A
Application number: CN202110506909.4A
Authority: CN
Inventors: 王臣玺; 孙鹏; 宋扬; 杨宇
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2022-11-11
Also published as: WO2022237641A1

Abstract

The application discloses a beam failure recovery method, a terminal and network side equipment, which belong to the technical field of communication, and the beam failure recovery method of the embodiment of the application comprises the following steps: the terminal measures at least two wave beam failure detection reference signal BFD RS sets configured by the network side equipment to obtain a measuring result; under the condition that the at least two BFD RS sets meet the beam failure condition according to the measurement result, the terminal sends a target beam failure recovery request BFRQ; the terminal receives a beam failure recovery response BFRR corresponding to the target BFRQ; and the terminal resets the Transmission Configuration Indication (TCI) state of partial channels or all channels according to the target beam information carried by the target BFRQ and/or resets the configuration parameters of uplink power control according to the target beam information.

Description

Beam failure recovery method, terminal and network side equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a beam failure recovery method, a terminal and network side equipment.

Background

In a high-band communication system, since the wavelength of a wireless signal is short, it is easy to cause a situation such as blocking of signal propagation, which causes interruption of signal propagation, thereby affecting data transmission.

The network side equipment configures a beam failure detection reference signal for the terminal, and the terminal measures the beam failure detection reference signal in a physical layer, so as to judge whether a beam failure event occurs, if the beam failure event occurs, the beam link is interrupted, and if the beam link is not recovered, data transmission is influenced, and the reliability of data transmission is reduced.

Disclosure of Invention

The embodiment of the application provides a beam failure recovery method, a terminal and a network side device, which can solve the problems of beam link interruption and data transmission reliability reduction.

In a first aspect, a method for recovering beam failure is provided, where the method includes:

the terminal measures at least two wave beam failure detection reference signal BFD RS sets configured by the network side equipment to obtain a measurement result;

under the condition that the at least two BFD RS sets meet the beam failure condition according to the measurement result, the terminal sends a target beam failure recovery request BFRQ;

the terminal receives a beam failure recovery response BFRR corresponding to the target BFRQ;

and the terminal resets the Transmission Configuration Indication (TCI) state of partial channels or all channels according to the target beam information carried by the target BFRQ and/or resets the configuration parameters of uplink power control according to the target beam information.

In a second aspect, a beam failure recovery apparatus is provided, including:

the acquisition module is used for measuring at least two wave beam failure detection reference signal BFD sets configured by the network side equipment to obtain a measurement result;

a sending module, configured to send a target beam failure recovery request BFRQ when it is determined that the at least two BFD RS sets satisfy the beam failure condition according to the measurement result;

a receiving module, configured to receive a beam failure recovery response BFRR corresponding to the target BFRQ;

and the resetting module is used for resetting the transmission configuration indication TCI state of a part of channels or all channels according to the target beam information carried by the target BFRQ and/or resetting the configuration parameters of uplink power control according to the target beam information.

In a third aspect, a method for recovering beam failure is provided, where the method includes:

the method comprises the steps that network side equipment configures at least two wave beam failure detection reference signal BFD RS sets for a terminal;

the network side equipment receives a target beam failure recovery request BFRQ;

and the network side equipment sends a beam failure recovery response BFRR corresponding to the target BFRQ.

In a fourth aspect, a beam failure recovery apparatus is provided, including:

the configuration module is used for configuring at least two wave beam failure detection reference signal (BFD RS) sets for the terminal;

a receiving module, configured to receive a target beam failure recovery request BFRQ;

and a sending module, configured to send a beam failure recovery response BFRR corresponding to the target BFRQ.

In a fifth aspect, there is provided a terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method according to the first aspect.

A sixth aspect provides a terminal, including a processor and a communication interface, where the processor is configured to measure at least two beam failure detection reference signal BFD RS sets configured by a network side device, obtain a measurement result, and reset a TCI state of a transmission configuration indication of a part of channels or all channels according to target beam information carried by the target BFRQ, and/or reset a configuration parameter for uplink power control according to the target beam information; the communication interface is used for sending a target wave beam failure recovery request BFRQ under the condition that the at least two BFD RS sets are determined to meet the wave beam failure condition according to the measurement result; and receiving a beam failure recovery response BFRR corresponding to the target BFRQ.

In a seventh aspect, a network-side device is provided, which includes a processor, a memory, and a program or an instruction stored on the memory and executable on the processor, and when executed by the processor, the program or the instruction implements the steps of the method according to the third aspect.

In an eighth aspect, a network side device is provided, which includes a processor and a communication interface, where the processor is configured to configure at least two beam failure detection reference signal BFD RS sets for a terminal; the communication interface is used for receiving a target beam failure recovery request BFRQ; and sending a beam failure recovery response BFRR corresponding to the target BFRQ.

In a ninth aspect, there is provided a readable storage medium on which is stored a program or instructions which, when executed by a processor, carries out the steps of the method of the first aspect or the steps of the method of the third aspect.

In a tenth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the method according to the first aspect, or to implement the method according to the third aspect.

In an eleventh aspect, there is provided a computer program/program product stored on a non-volatile storage medium, the program/program product being executed by at least one processor to implement the steps of the beam failure recovery method according to the first or third aspect.

In the embodiment of the application, a terminal measures at least two wave beam failure detection reference signal BFD RS sets configured by a network side device to obtain a measuring result; under the condition that the at least two BFD RS sets meet the beam failure condition according to the measurement result, the terminal sends a target beam failure recovery request BFRQ; the terminal receives a beam failure recovery response BFRR corresponding to the target BFRQ; and the terminal resets the Transmission Configuration Indication (TCI) state of partial channels or all channels according to the target beam information carried by the target BFRQ and/or resets the configuration parameters of uplink power control according to the target beam information. The method can enable the terminal to quickly recover the interrupted beam link, and improves the reliability of data transmission.

Drawings

Fig. 1 is a block diagram of a network system according to an embodiment of the present application;

fig. 2 is a flowchart of a beam failure recovery method provided in an embodiment of the present application;

fig. 3 is another flowchart of a beam failure recovery method according to an embodiment of the present application;

fig. 4 is a structural diagram of a beam failure recovery apparatus according to an embodiment of the present application;

fig. 5 is another structural diagram of a beam failure recovery apparatus according to an embodiment of the present application;

fig. 6 is a block diagram of a communication device provided in an embodiment of the present application;

fig. 7 is a structural diagram of a terminal provided in an embodiment of the present application;

fig. 8 is a structural diagram of a network-side device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived from the embodiments given herein by a person of ordinary skill in the art are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in other sequences than those illustrated or otherwise described herein, and that the terms "first" and "second" used herein generally refer to a class and do not limit the number of objects, for example, a first object can be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-a) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), time Division Multiple Access (TDMA), frequency Division Multiple Access (FDMA), orthogonal Frequency Division Multiple Access (OFDMA), single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, but the techniques may also be applied to applications other than NR system applications, such as 6 th generation (6 th generation) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: smart watches, bracelets, earphones, glasses, and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, where the Base Station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a WLAN access Point, a WiFi node, a Transmit Receiving Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but a specific type of the Base Station is not limited.

The beam failure recovery method provided by the embodiments of the present application is described in detail below with reference to the accompanying drawings by using some embodiments and application scenarios thereof.

Fig. 2 is a flowchart of a beam failure recovery method according to an embodiment of the present application, and as shown in fig. 2, the beam failure recovery method according to the embodiment includes:

step 201, the terminal measures at least two beam failure detection reference signal BFD RS sets configured by the network side device to obtain a measurement result.

A terminal measures at least two Beam Failure Detection Reference Signal (BFD RS) sets, wherein a network side device may configure the BFD RS sets in an explicit or implicit manner, for example, in an implementation of a display indication manner, a domain indication control resource set pool index (coresetPoolindex) or a coresetgroupcID is added in the BFD RS set; in the implicit indication mode, the correlation between the BFD RS and CORESETPoolindex or CORESETGroupID is obtained according to the implicit configuration of the BFD RS.

The at least two sets of BFD RSs include at least one of:

a BFD RS set of one or more transmitting receiving points TRP corresponding to the same cell;

a BFD RS set of one or more transmitting and receiving points TRP corresponding to different cells;

a set of BFD RSs corresponding to one or more cells.

That is to say, at least one of the at least two BFD RS sets may correspond to one TRP or multiple TRPs, and/or at least one of the at least two BFD RS sets may correspond to a part of TRPs in the primary cell, or a part of TRPs in the secondary cell, or a corresponding primary cell, or a corresponding secondary cell, or multiple cells.

The TRP corresponding to the BFD RS set may be indicated by a control resource set pool index (i.e., coresetpoilindex) and/or a control resource group identifier (CORESETGroupID), and further, the TRP may be indicated by a BFD RS set identifier (i.e., BFD RS set ID) or an NBI RS set identifier.

Step 202, under the condition that it is determined that the at least two BFD RS sets satisfy the Beam failure condition according to the measurement result, the terminal sends a Beam failure recovery request (BFRQ).

And the terminal measures each BFD RS set in the at least two BFD RS sets and judges whether each BFD RS set has a wave beam failure event or not according to the measurement result. The beam failure condition may be that a beam failure occurs for one or more of the at least two sets of BFD RSs. And under the condition that the at least two BFD RS sets meet the beam failure condition, the terminal sends a target BFRQ to the network side equipment.

Step 203, the terminal receives a Beam Failure Recovery Response (BFRR) corresponding to the target BFRQ.

And step 204, the terminal resets the Transmission Configuration Indication (TCI) state of a part of channels or all channels according to the target beam information carried by the target BFRQ, and/or resets the Configuration parameters of uplink power control according to the target beam information.

In this embodiment, the terminal measures at least two beam failure detection reference signal BFD RS sets configured by the network side device to obtain a measurement result; under the condition that the at least two BFD RS sets meet the beam failure condition, the terminal sends a target BFRQ; the terminal receives the BFRR corresponding to the target BFRQ; and the terminal resets the TCI states of partial channels or all channels according to the target beam information carried by the target BFRQ and/or resets the configuration parameters of uplink power control according to the target beam information. And under the condition that the terminal detects that the at least two BFD RS sets meet the beam failure condition, the terminal sends a target BFRQ to the network side equipment, so that the network side equipment and the terminal can quickly recover the interrupted beam link, and the reliability of data transmission is improved.

It should be noted that, when there is available uplink resource, the target BFRQ includes a BFR MAC CE, and the BFR MAC CE includes beam failure recovery information of a BFD RS set in which beam failure occurs; under the condition that the terminal does not have available uplink authorization currently and the network side equipment configures PUCCH resources for transmitting the scheduling request, the target BFRQ comprises the scheduling request and BFR MAC CE; and under the condition that the terminal does not have available uplink grant currently and the network side equipment does not configure the PUCCH resource for transmitting the scheduling request, the target BFRQ comprises the RACH sequence, the scheduling request and the BFR MAC CE.

The following describes a beam failure recovery method under different conditions provided by the present application.

In the first case: the at least two BFD RS sets include a first BFD RS set and a second BFD RS set, and the first BFD RS set and the second BFD RS set correspond to different TRPs of a first cell.

In the first case, there is one BFD RS set that has beam failure, i.e., the beam failure condition is that a beam failure occurs in the first BFD RS set or the second BFD RS set.

Correspondingly, the terminal sends the target beam failure recovery request BFRQ including any one of the following items:

transmitting the target BFRQ on a most recent available uplink grant;

transmitting the target BFRQ through a Physical Uplink Control Channel (PUCCH) when only one PUCCH for transmitting a beam failure recovery request is configured in a cell group in which the first cell is located;

under the condition that a plurality of PUCCHs used for transmitting beam failure recovery requests are configured in a cell group in which the first cell is located, transmitting the target BFRQ through a PUCCH associated with a failed or non-failed BFD RS set in the first cell;

under the condition that the network side equipment configures non-Contention-based Random Access (CFRA), transmitting the target BFRQ through the CFRA;

and under the condition that the network side equipment is not configured with the non-Contention-Based Random Access CFRA, transmitting the target BFRQ through a Contention-Based Random Access (CBRA).

Specifically, under the condition that the beam failure of the first BFD RS set or the second BFD RS set is judged, if the network side equipment configures the NBI RS set, the UE obtains a new beam by measuring the NBI RS;

the terminal transmits the target BFRQ on the latest available UpLink (UL) grant (grant), which may be understood as a BFR Media Access Control (MAC) Control unit (CE) that the terminal transmits BFR information including Beam Failure Recovery (BFR) information corresponding to the failed BFD RS set on the latest available UL grant.

In the first case, two BFD RS sets have beam failure, that is, the beam failure condition includes that the first BFD RS set has beam failure, and the terminal is in the beam failure recovery request process where the second BFD RS set has beam failure;

correspondingly, the first cell is a main cell, and the target BFRQ includes beam failure recovery information of a first BFD RS set;

transmitting the target BFRQ on a most recent available uplink grant;

when only one Physical Uplink Control Channel (PUCCH) used for sending the beam failure recovery request is configured in the cell group in which the first cell is located, sending the target BFRQ through the PUCCH;

when a plurality of PUCCHs for transmitting a beam failure recovery request are configured in a cell group in which the first cell is located, transmitting the target BFRQ through the latest PUCCH of the plurality of PUCCHs;

transmitting the target BFRQ through a PUCCH associated with the first BFD RS set or the second BFD RS set in a case that a plurality of PUCCHs for transmitting a beam failure recovery request are configured for a cell group in which the first cell is located,

configuring a plurality of PUCCHs for sending beam failure recovery requests in a cell group where the first cell is located, and sending the target BFRQ through a nearest PUCCH associated with a first BFD RS set or a second BFD RS set when a terminal receives a beam failure recovery response BFRR corresponding to the second BFD RS set;

under the condition that the terminal receives the BFRR corresponding to the second BFD RS set, the target BFRQ is sent on the uplink authorization scheduled by the BFRR corresponding to the second BFD RS set;

under the condition that the network side equipment configures the CFRA associated with the first BFD RS set, the target BFRQ is sent through the CFRA;

and in the case that the network side equipment does not configure the CFRA associated with the first BFD RS set, transmitting the target BFRQ through the CBRA.

Specifically, if it is determined that a beam failure occurs in the first BFD RS set and at least one second BFD RS set having a beam failure occurs in the same cell is in the BFRQ process, the BFRQ process for the beam failure recovery request may be one of the following processes:

the method comprises the steps of setting a time point of declaring a BFD RS set beam failure, or setting a last symbol of a last NBI RS resource in a BFD RS set associated NBI RS set with the beam failure, or using a first symbol of an available UL grant as a starting point, and ending after UE receives the last symbol of HARQ-ACK corresponding to the UL grant, or the first symbol or the last symbol of BFRR or completes PDCCH decoding;

if the CFRA resource is configured, the time when a BFD RS set wave beam fails is announced, or the last symbol of the last NBI RS resource in a BFD RS set associated with the BFD RS set with the wave beam failure occurs is used as a starting point, the UE receives the first symbol or the last symbol of the BFRR or finishes PDCCH decoding and verifies the correctness, or finishes the K-th CFRA transmission, and the K-time transmission is the maximum allowable CFRA transmission times configured by the network side equipment;

if the CFRA resource is not configured, the time when a BFD RS set wave beam fails is declared, or the last symbol of the last NBI RS resource in a BFD RS set associated NBI RS set with the failed wave beam is used as a starting point, or the first symbol of the CBRA is used as a starting point, and the method is ended when the UE receives the first symbol or the last symbol of the BFRR or completes PDCCH decoding and verifies correctness, or when Msg3 transmission in the CBRA for the P time is completed, wherein the transmission for the P time is the maximum allowable CBRA transmission frequency configured by the network side equipment;

when a BFD RS set wave beam is declared to fail, or the last symbol of the last NBI RS resource in a BFD RS set associated NBI RS set with wave beam failure, or the first symbol of the PUCCH resource closest to the time of declaring wave beam failure in all PUCCH resources configured by a network side device is taken as a starting point, and when the UE receives the first symbol or the last symbol of the BFRR or completes PDCCH decoding and verification, or completes Q-th SR transmission, the Q-th transmission is the maximum number of times of allowing scheduling request transmission configured by the network side device;

when the above situation occurs in the primary cell, if the network side device configures the NBI RS set, the UE will measure the NBI RS to obtain a new beam, and the UE may adopt any one of the methods to send a target BFRQ:

the UE may continue to perform the BFRQ procedure corresponding to the second BFD RS set, and perform the BFRQ procedure corresponding to the first BFD RS set in any one of the following manners:

transmitting a first BFR MAC CE on a most recently available UL grant;

if only one PUCCH resource for recovering from sending the scheduling request due to beam failure is configured in the cell group of the first cell, the UE sends the scheduling request by using the PUCCH resource.

If a plurality of PUCCH resources for beam failure recovery transmission scheduling request are configured in the cell group in which the first cell is located, any one of the following manners may be adopted:

transmitting a scheduling request on a latest PUCCH resource; transmitting a scheduling request on PUCCH resources associated with the first or second set of BFD RSs; after receiving the BFRR corresponding to the second BFD RS set, the UE sends a scheduling request on the nearest PUCCH resource associated with the first BFD RS set or the second BFD RS set;

after the UE receives the BFRR corresponding to the second BFD RS set, sending a first BFR MAC CE on the UL grant scheduled by the BFRR;

if the network side equipment is configured with the CFRA associated with the first BFD RS set and the terminal finds a new beam corresponding to the first BFD RS set, sending BFRQ information corresponding to the first BFD RS set through the CFRA, otherwise, if the network side equipment is configured with the CFRA associated with the first BFD RS set and the terminal finds a new beam corresponding to the first BFD RS set, sending the BFRQ information through the CBRA;

the first BFR MAC CE at least includes an identifier of the first BFR RS set and one item of new beam information corresponding to the first BFD RS set.

The CBRA may be: the CBRA is configured by the network side equipment and is associated with the first BFD RS set; or the CBRA configured by the network side equipment and associated with the primary cell. And when the CBRA is adopted to send the target BFRQ, if a new wave beam carried by the target BFRQ has an incidence relation with the second BFD RS set, the UE backs to the STRP.

And if the first cell is a primary cell and the beam failure condition includes that the first BFD RS set has beam failure and the terminal is in the beam failure recovery request process that the second BFD RS set has beam failure, if the BFRQ process corresponding to the second BFD RS set only proceeds before the second BFR MAC CE is put on the PUSCH for transmission, or the second BFR MAC CE corresponding to the second BFD RS set has been transmitted on the PUSCH but is not multiplexed with the UL-SCH, the UE may continue to perform the BFRQ process corresponding to the second BFD RS set and start to perform the BFRQ process corresponding to the first BFD RS set, or the UE may interrupt the BFRQ process corresponding to the second BFD RS set and transmit a target BFRQ using the CBRA, where the target BFRQ further includes beam failure recovery information of the second BFD RS set. And the second BFR MAC CE at least comprises one item of identification of the second BFR RS set and new beam information corresponding to the second BFD RS set.

In a first case, two BFD RS sets have beam failure, that is, the beam failure condition includes that the first BFD RS set has beam failure, and the terminal is in a beam failure recovery request process where the second BFD RS set has beam failure;

correspondingly, the first cell is an auxiliary cell, and the target BFRQ includes beam failure recovery information of the first BFD RS set;

transmitting the target BFRQ on a most recent available uplink grant;

transmitting the target BFRQ through a latest PUCCH associated with the first BFD RS set under the condition that a plurality of PUCCHs used for transmitting beam failure recovery requests are configured in a cell group in which the first cell is located;

transmitting the target BFRQ through a PUCCH associated with the first BFD RS set or the second BFD RS set under the condition that a plurality of PUCCHs for transmitting beam failure recovery requests are configured in a cell group in which the first cell is located;

configuring a plurality of PUCCHs for sending beam failure recovery requests in a cell group where the first cell is located, and sending the target BFRQ through a nearest PUCCH associated with the first BFD RS set or the second BFD RS set when a terminal receives BFRR corresponding to the second BFD RS set;

and under the condition that the terminal receives the BFRR corresponding to the second BFD RS set, the target BFRQ is sent on the uplink authorization scheduled by the BFRR corresponding to the second BFD RS set.

When the first cell is a secondary cell, and the beam failure condition includes that a beam failure occurs in the first BFD RS set and the terminal is in a beam failure recovery request process in which a beam failure occurs in the second BFD RS set, when the beam failure occurs in the first BFD RS set and a BFRQ corresponding to the second BFD RS set is not sent on a PUSCH, or when the beam failure occurs in the first BFD RS set, a BFRQ corresponding to the second BFD RS set has been sent on a PUSCH and the PUSCH is not multiplexed with an uplink shared transmission channel UL-SCH, continuing or interrupting execution of the beam failure recovery request process corresponding to the second BFD RS set and sending the target BFRQ through at least one of the following procedures;

transmitting the target BFRQ on a most recent available uplink grant;

under the condition that one PUCCH used for sending the beam failure recovery request is configured in the cell group where the first cell is located, sending the target BFRQ through the PUCCH;

under the condition that a plurality of PUCCHs used for sending the beam failure recovery request are configured in the cell group where the first cell is located, selecting one PUCCH from the PUCCHs according to a fourth preset rule to send the target BFRQ;

transmitting the target BFRQ through a CFRA or a CBRA in a primary cell in a cell group in which the first cell is located.

In the first case, two BFD RS sets have beam failures, that is, the beam failure condition includes that the first BFD RS set and the second BFD RS set have beam failures at the same time; and under the condition that the first cell is a main cell, the terminal sends the target BFRQ through the CBRA.

In the first case, two BFD RS sets have beam failures, that is, the beam failure condition includes that the first BFD RS set and the second BFD RS set have beam failures at the same time; and under the condition that the first cell is the auxiliary cell, the terminal can send the target BFRQ by adopting at least one of the following modes:

transmitting the target BFRQ on a most recent available uplink grant;

and under the condition that a plurality of PUCCHs used for sending the beam failure recovery request are configured in the cell group in which the first cell is located, selecting one PUCCH from the plurality of PUCCHs according to a fifth preset rule to send the target BFRQ.

In the above, the simultaneous occurrence of beam failure in the first BFD RS set and the second BFD RS set may be understood as: when the first BFD RS set fails to generate a beam, the second BFD RS set fails to generate a beam but does not enter a BFRQ process, or the network side equipment predefines a time window, and when the UE detects that both the two BFD RS sets fail in the time window, the UE considers that both the two BFD RS sets fail at the same time.

The target BFRQ at least comprises at least one of an identifier of the first BFR RS set, an identifier of the second BFD RS set, new beam information corresponding to the first BFD RS set and new beam information corresponding to the second BFD RS set.

And under the condition that the beam failure condition includes that the first BFD RS set has beam failure, and the terminal is in the beam failure recovery request process when the second BFD RS set has beam failure, the target BFRQ at least includes one of an identifier of the first BFR RS set, an identifier of the second BFD RS set, new beam information corresponding to the first BFD RS set, and new beam information corresponding to the second BFD RS set, wherein the identifier of the BFD RS set may be indicated by CORESETPoolindex or CORESETGroupID.

After the terminal receives the BFRR, the TCI state of the Control resource set (CORESET) associated with the first BFD RS set may be reset according to the target beam information, and/or the TCI state of the CORESET associated with the second BFD RS set may be reset. The target beam information is the new beam information carried in the target BFRQ.

In a second case, the at least two BFD RS sets include a first BFD RS set, a second BFD RS set, and a third BFD RS set, where the first BFD RS set and the second BFD RS set correspond to different TRPs of the first cell, and the third BFD RS set corresponds to the first cell.

In a second case, the beam failure condition includes at least one of:

the first BFD RS set and the second BFD RS set both generate beam failure in a first preset time window;

a beam failure occurs in the third BFD RS set;

and all BFD RS sets configured in the first cell have beam failure in a second preset time window.

If the network side device configures a first NBI RS set and a second NBI RS set for acquiring new beams of different TRPs of the first cell, and a third NBI RS set for acquiring new beams of the first cell, the UE measures all RSs in all sets to search for new beams; the first NBI RS set corresponds to the first BFD RS set, the second NBI RS set corresponds to the second BFD RS set, and the third NBI RS set corresponds to the third BFD RS set;

the first NBI RS set and the second NBI RS set correspond to different TRPs; the third set of NBI RSs may be RRC-configured or directly consist of the first set of NBI RSs and the second set of NBI RSs.

In a second case, the first cell is a main cell, and if the condition that the beam fails is that the first BFD RS set and the second BFD RS set fail in a first preset time window, and/or the third BFD RS set fails in a beam, the terminal sends a target BFRQ in at least one of the following manners:

if the network side equipment configures the CFRA resources, the CFRA is used for sending BFRQ information;

if the network is not configured with the CFRA resources, BFRQ information is sent through the CBRA;

in this case, the target BFRQ includes a new beam known from the third NBI RS set, but does not contain the failed BFD RS set identification.

After the terminal receives the BFRR, the TCI state of at least all CORESET is reset according to the information of the new beam in the target BFRQ, or at least the TCI state of the CORESET corresponding to the new beam is reset.

In a second case, the beam failure condition includes that the third set of BFD RSs has a beam failure, and the first set of BFD RSs and the second set of BFD RSs have a beam failure before the third set of BFD RSs have a beam failure;

the first cell is a main cell, and the target BFRQ comprises beam failure recovery information of the third BFD RS set;

under the condition that the at least two BFD RS sets are determined to meet the beam failure condition according to the measurement, the terminal sends a target beam failure recovery request BFRQ, and the method comprises the following steps:

interrupting the beam failure recovery request process corresponding to each of the first BFD RS set and the second BFD RS set, and sending the target BFRQ through CFRA, CBRA, or available uplink grant, or PUCCH corresponding to the third BFD RS set, where the target BFRQ includes new beam information obtained from the third NBI RS set but does not include failed BFD RS set identifier, and further resetting the TCI state of the CORESET corresponding to the target BFRQ according to the new beam information (i.e., target beam information) obtained from the third NBI RS set, or resetting the TCI states of all CORESETs corresponding to the first cell;

or,

when the beam failure recovery request process corresponding to the first BFD RS set conflicts with the beam failure recovery request process corresponding to the third BFD RS set, for example, the BFRQ process corresponding to the first BFD RS set is later than the BFRQ process corresponding to the second BFD RS set, and the BFRQ process corresponding to the first BFD RS set conflicts with the BFRQ process corresponding to the third BFD RS set, the beam failure recovery request process corresponding to the first BFD RS set is interrupted, the BFRQ process corresponding to the second BFD RS set continues, the terminal does not initiate scheduling request and random access, and transmits the target BFRQ on the uplink grant transmitting the BFRQ corresponding to the second BFD RS set, where the target BFRQ further includes failure beam recovery information of the second BFD RS set;

or, when the beam failure recovery request process corresponding to the first BFD RS set conflicts with the beam failure recovery request process corresponding to the third BFD RS set, for example, the BFRQ process corresponding to the first BFD RS set is later than the BFRQ process corresponding to the second BFD RS set, and the BFRQ process corresponding to the first BFD RS set conflicts with the BFRQ process corresponding to the third BFD RS set, the beam failure recovery request process corresponding to the first BFD RS set is interrupted, the BFRQ process corresponding to the second BFD RS set continues to be performed, and the target BFRQ is sent through CFRA, CBRA, available uplink grant, or PUCCH corresponding to the third BFD RS set;

or,

continuing to perform a BFRQ process corresponding to each of the first BFD RS set and the second BFD RS set, starting a BFRQ process corresponding to a third BFD RS set, and transmitting the target BFRQ on an uplink grant for transmitting the BFRQ corresponding to the second BFD RS set, wherein the target BFRQ further includes beam failure recovery information of the first BFD RS set and/or beam failure recovery information of the second BFD RS set; that is to say, the BFR MAC CEs corresponding to the first BFD RS set and the second BFD RS set, and the BFR MAC CEs corresponding to the third BFD RS set are transmitted in the same UL grant;

or,

continuing to perform the BFRQ processes corresponding to the first BFD RS set and the second BFD RS set, and starting a BFRQ process corresponding to a third BFD RS set, and transmitting the BFRQ corresponding to the first BFD RS set through a CFRA, or a CBRA, or an available uplink grant, or a PUCCH corresponding to the first BFD RS set, and transmitting the target BFRQ on the uplink grant transmitting the BFRQ corresponding to the second BFD RS set, where the target BFRQ may further include beam failure recovery information of the second BFD RS set, that is, the BFRQ information (i.e., beam failure recovery information) corresponding to the first BFD RS set may be transmitted through a UL grant or a PUCCH resource or a CFRA or a CBRA, and the BFR MAC CE corresponding to the second BFD RS set and the BFR MAC CE corresponding to the third BFD RS set are transmitted in the same UL grant;

or, the BFRQ corresponding to the first BFD RS set and the BFRQ corresponding to the second BFD RS set are sent through CFRA, CBRA, or available uplink grant, or the respective PUCCHs of the first BFD RS set and the second BFD RS set, and the target BFRQ is sent through CFRA, CBRA, or available uplink grant, or the PUCCH corresponding to the third BFD RS set, that is, the BFRQ information corresponding to the first BFD RS set and the second BFD RS set may be sent through their corresponding UL grant or PUCCH resource or CFRA (if configured) or CBRA, respectively, and the BFRQ information corresponding to the third BFD RS set may be transmitted through CFRA (if configured) or CBRA.

In a second case, the beam failure condition includes that the third set of BFD RSs have beam failure, and the first set of BFD RSs and the second set of BFD RSs have beam failure before the third set of BFD RSs have beam failure;

the terminal resets the Transmission Configuration Indication (TCI) state of a part of channels or all channels according to the target beam information carried by the target BFRQ, and/or resets the configuration parameters of uplink power control according to the target beam information, including:

under the condition that the terminal interrupts the beam failure recovery request processes corresponding to the first BFD RS set and the second BFD RS set, resetting the TCI state of the CORESET corresponding to the terminal according to the target beam information, or resetting the TCI states of all CORESETs corresponding to the first cell;

or,

when the terminal interrupts the beam failure recovery request process corresponding to the first BFD RS set, continues to execute the beam failure recovery request process corresponding to the second BFD RS set, and starts the beam failure recovery request process corresponding to the third BFD RS set, if the first new beam information carried by the BFRQ associated with the second BFD RS set and the target beam information correspond to the same TRP, resetting the TCI state of the CORESET corresponding to the target beam information or the TCI states of all CORESETs corresponding to the first cell according to the target beam information;

or,

under the condition that the terminal interrupts the beam failure recovery request process corresponding to the first BFD RS set, continues to execute the beam failure recovery request process corresponding to the second BFD RS set, and starts the beam failure recovery request process corresponding to the third BFD RS set, if first new beam information carried by BFRQ associated with the second BFD RS set and the target beam information correspond to different TRPs, resetting the TCI state of the CORESET corresponding to the target beam information according to the target beam information, and resetting the TCI state of the CORESET corresponding to the target beam information according to the first new beam information;

or, when the terminal continues to execute the respective beam failure recovery request processes corresponding to the first BFD RS set and the second BFD RS set and starts the beam failure recovery request process corresponding to the third BFD RS set, resetting the TCI state of the CORESET corresponding to the respective new beam information according to the new beam information carried by the BFRQ associated with the first BFD RS set and the second BFD RS set, and resetting the TCI state of the CORESET corresponding to the target beam information according to the target beam information;

or,

under the condition that the terminal continues to execute the beam failure recovery request processes corresponding to the first BFD RS set and the second BFD RS set respectively and starts the beam failure recovery request process corresponding to the third BFD RS set, resetting the TCI state of the CORESET corresponding to the terminal according to the target beam information, or resetting the TCI states of all CORESETs corresponding to the first cell;

or,

under the condition that the terminal continues to execute the beam failure recovery request processes corresponding to the first BFD RS set and the second BFD RS set respectively and starts the beam failure recovery request process corresponding to the third BFD RS set, selecting second new beam information and third new beam information from the candidate new beam information according to a third preset rule to respectively reset TCI states of CORESET corresponding to the terminal respectively, or resetting TCI states of all CORESET corresponding to the first cell, wherein the second new beam information and the third new beam information are associated with different BFD RS sets; the third preset rule may be that time is the latest, and the TCI state of the corresponding CORESET is reset by using the latest new beam (that is, the NBI RS resource corresponding to the new beam is closest to the sending BFRQ information); or according to the quality optimization principle, resetting the TCI state of the CORESET corresponding to the new beam with the highest RS measurement value;

the candidate new beam information includes new beam information carried by the BFRQ associated with the first BFD RS set, new beam information carried by the BFRQ associated with the second BFD RS set, and the target new beam information.

correspondingly, the first cell is a secondary cell, and the target BFRQ includes beam failure recovery information of the third BFD RS set;

transmitting the target BFRQ on a most recent available uplink grant;

transmitting the target BFRQ through a PUCCH under the condition that only one PUCCH used for transmitting a beam failure recovery request is configured in a cell group in which the first cell is positioned;

and under the condition that a plurality of PUCCHs used for sending the beam failure recovery request are configured in the cell group where the first cell is located, selecting one PUCCH from the plurality of PUCCHs according to a first preset rule to send the target BFRQ.

In a third case, the at least two BFD RS sets include a first BFD RS set, a second BFD RS set, and a fourth BFD RS set, where the first BFD RS set and the second BFD RS set correspond to different TRPs of the first cell, and the fourth BFD RS set is a BFD RS set corresponding to the second cell, or a BFD RS set corresponding to a TRP in the second cell; the second cell is in the same cell group as the first cell.

For example, the network side device configures a first BFD RS set, a second BFD RS set, a third BFD RS set, a fourth BFD RS set, and a fifth BFD RS set, where the first BFD RS set and the second BFD RS set correspond to different TRPs of the first cell, and the fourth BFD RS set may correspond to the second cell or to the TRP of the second cell; the fourth set of BFD RSs and the fifth set of BFD RSs may correspond to different TRPs for the same cell, or alternatively, to different cells. The third set of BFD RSs may be selectively configurable.

And the terminal measures each set of the at least two BFD RS sets, and if the first BFD RS set or the second BFD RS set is judged to have beam failure according to the measurement result, the processing is carried out according to the mode that the first BFD RS set or the second BFD RS set has beam failure in the previous embodiment.

And if the first BFD RS set or the second BFD RS set fails to send the wave beams and the fourth BFD RS set fails to send the wave beams according to the measurement result, the fourth BFD RS set corresponds to the second cell. The cell identifiers or physical cell identifiers corresponding to the first cell and the second cell may be the same or different.

If the network side equipment configures an NBI RS set associated with the BFD RS set, the UE respectively measures each NBI RS set and searches for a corresponding new beam; generating a third BFR MAC CE according to the failure information and the new beam information of the first BFD RS set or the second BFD RS set, and generating a fourth BFR MAC CE according to the failure information and the new beam information of the fourth BFD RS set;

the UE may transmit the target BFRQ in any of the following manners:

sending a third BFR MAC CE and a fourth BFR MAC CE on a latest available UL grant, that is, sending a BFRQ corresponding to a target BFD RS set and the target BFRQ on a latest available uplink grant, wherein the target BFD RS set is a first BFD RS set or a second BFD RS set with beam failure;

when only one PUCCH for transmitting the beam failure recovery request is configured in the cell group in which the second cell is located, transmitting the target BFRQ through the PUCCH;

under the condition that a plurality of PUCCHs used for sending the beam failure recovery request are configured in the cell group where the second cell is located, selecting one PUCCH from the PUCCHs according to a second preset rule to send the target BFRQ;

under the condition that the network side equipment configures a non-contention-based random access CFRA, sending the target BFRQ through the CFRA;

and under the condition that the network side equipment is not configured with the non-contention-based random access CFRA, transmitting the target BFRQ based on the CBRA.

If the network side equipment configures the CBRA resources associated with the BFD RS set, the BFRQ information is sent by using the CBRA resources associated with the BFD RS set which fails or does not fail in the main cell; otherwise, if the new beam information carried by the CBRA resources is associated with the failed BFD RS set, returning to the STRP.

In the above, the second preset rule includes any one of:

selecting a nearest PUCCH from a plurality of PUCCHs;

selecting a PUCCH associated with a failed or non-failed BFD RS set of the at least two BFD RS sets from a plurality of PUCCHs;

selecting a PUCCH associated with the fourth BFD RS set from a plurality of PUCCHs;

selecting a PUCCH corresponding to a primary cell in a cell group in which the second cell is located from the plurality of PUCCHs.

If the target BFRQ contains new beam information, after the UE receives the BFRR, the TCI state of CORESET associated with BFD RS set which has beam failure is at least reset according to the new beam information of the target BFRQ.

And the terminal measures each of the at least two BFD RS sets, and if the first BFD RS set or the second BFD RS set fails to send the wave beam and the fourth BFD RS set fails to send the wave beam according to the measurement result, the fourth BFD RS set corresponds to the TRP in the second cell, and the second cell comprises at least two TRPs. The cell identifiers or physical cell identifiers corresponding to the first cell and the second cell may be the same or different.

And if the network side equipment configures the NBI RS sets associated with the BFD RS sets, the UE respectively measures each NBI RS set and searches for a corresponding new beam.

The UE may transmit the target BFRQ in any of the following manners:

transmitting the target BFRQ on a most recent available uplink grant;

when only one PUCCH used for sending the beam failure recovery request is configured in the cell group in which the second cell is located, sending the target BFRQ through the PUCCH;

selecting one PUCCH or at least two PUCCHs from a plurality of PUCCHs to transmit the target BFRQ under the condition that the cell group where the second cell is located configures a plurality of PUCCHs for transmitting the beam failure recovery request; when the network side equipment configures a plurality of PUCCH resources on the primary cell and the first cell is the primary cell, BFRQ is carried out according to the following two conditions:

if the failed BFD RS in the first cell and the failed BFD RS set in the second cell correspond to the same TRP, sending a scheduling request on PUCCH resources associated with the failed or non-failed BFD RS set;

if the failed BFD RS in the first cell and the failed BFD RS set in the second cell correspond to different TRPs, the UE may select one or more PUCCH resources according to a certain preset rule to send a scheduling request, such as a PUCCH resource closest to a time of announcing the beam failure or a PUCCH resource associated with an RS with a highest measurement value.

If the CFRA resources are configured, BFRQ information is sent through the CFRA; otherwise, sending the BFRQ information through the CBRA, specifically, if the network side equipment configures the CBRA resources associated with the BFD RS set, sending the BFRQ information by using the CBRA resources associated with the BFD RS set which fails or does not fail in the main cell; otherwise, if the new beam information carried by the CBRA resources is associated with the failed BFD RS set, returning to the STRP.

That is, in the third case, the beam failure condition includes that the first BFD RS set or the second BFD RS set fails to receive a beam, and the fourth BFD RS set fails to receive a beam;

the fourth BFD RS set is a BFD RS set corresponding to TRP of a second cell, the second cell comprises at least two TRPs, and the target BFRQ comprises beam failure recovery information of the fourth BFD RS set and beam failure recovery information of the target BFD RS set;

the target BFD RS set is a first BFD RS set or a second BFD RS set which generates beam failure;

the terminal sends the target beam failure recovery request BFRQ, which includes any one of the following items:

transmitting the target BFRQ on a most recent available uplink grant;

selecting one PUCCH or at least two PUCCHs from a plurality of PUCCHs to transmit the target BFRQ under the condition that the cell group where the second cell is located configures a plurality of PUCCHs for transmitting the beam failure recovery request;

selecting one or at least two target PUCCHs from a plurality of PUCCHs to transmit the target BFRQ under the condition that the plurality of PUCCHs used for transmitting the beam failure recovery request are configured in the cell group where the second cell is located, wherein the target PUCCHs comprise the PUCCHs corresponding to the main cell in the cell group where the second cell is located;

In a third case, the beam failure condition includes that a beam failure occurs in the first BFD RS set or the second BFD RS set, and a beam failure occurs in the fourth BFD RS set;

the target BFRQ comprises beam failure recovery information of the fourth BFD RS set and beam failure recovery information of a target BFD RS set, and the target BFD RS set is a first BFD RS set or a second BFD RS set which has beam failure;

and resetting the TCI state of the CORESET associated with the BFD RS set with the beam failure according to the target beam information carried by the target BFRQ.

The above embodiments provide that, in a multi-TRP scenario and/or a CA scenario, when a beam failure occurs in a part of BFD RS sets, or a beam failure occurs in all BFD RS sets, or a beam failure occurs in at least two BFD RS sets simultaneously or non-simultaneously, the network and the UE can quickly recover an interrupted beam link by using the corresponding beam recovery method, thereby improving reliability of data transmission.

As shown in fig. 3, an embodiment of the present application provides a beam failure recovery method, including:

step 301, the network side device configures at least two beam failure detection reference signal BFD RS sets for the terminal.

The network side device may configure the BFD RS set in an explicit or implicit manner, for example, in the implementation of the display indication manner, a domain is added in the BFD RS set to indicate a control resource set pool index (i.e., coresetpoolndex), or a control resource group identifier (CORESETGroupID); in the implicit indication mode, acquiring the correlation between the BFD RS and the CORESETPoolindex or the CORESETGroupID according to the implicit configuration of the BFD RS.

The at least two sets of BFD RSs include at least one of:

a BFD RS set of one or more transmitting and receiving points TRP corresponding to the same cell;

a set of BFD RSs corresponding to one or more cells.

Step 302, the network side device receives a target beam failure recovery request BFRQ.

Under different conditions, the terminal sends the target BFRQ to the network side equipment through different sending ways, and correspondingly, the network side equipment can receive the target BFRQ through the way sent by the terminal. For example, the terminal sends the target BFRQ on the nearest available uplink grant, and accordingly, the network side device receives the target BFRQ on the available uplink grant for which the terminal sends the target BFRQ; and if the terminal transmits the target BFRQ through the PUCCH under the condition that only one PUCCH for transmitting the beam failure recovery request is configured in the cell group in which the first cell is positioned, the network side equipment receives the target BFRQ on the PUCCH.

Step 303, the network side device sends a beam failure recovery response BFRR corresponding to the target BFRQ, so that the terminal resets a Transmission Configuration Indication (TCI) state of a part of channels or all channels according to the target beam information carried by the target BFRQ, and/or resets a Configuration parameter for uplink power control according to the target beam information.

In this embodiment, a network side device configures at least two beam failure detection reference signal BFD RS sets for a terminal; receiving a target beam failure recovery request BFRQ; and sending a beam failure recovery response BFRR corresponding to the target BFRQ, so that the terminal resets the Transmission Configuration Indication (TCI) state of partial channels or all channels according to the target beam information carried by the target BFRQ, and/or resets the Configuration parameters of uplink power control according to the target beam information. The process can enable the network side equipment and the terminal to quickly recover the interrupted beam link, and improve the reliability of data transmission.

Further, the at least two sets of BFD RSs comprise at least one of:

a set of BFD RSs corresponding to one or more cells.

Further, the at least two BFD RS sets include a first BFD RS set and a second BFD RS set, and the first BFD RS set and the second BFD RS set correspond to different TRPs of the first cell.

Further, the at least two sets of BFD RSs also include a third set of BFD RSs corresponding to the first cell.

Further, the at least two BFD RS sets further include a fourth BFD RS set, where the fourth BFD RS set is a BFD RS set corresponding to the second cell, or a BFD RS set corresponding to the TRP in the second cell;

the second cell is in the same cell group as the first cell.

Further, the TRP may be indicated by at least one of:

controlling resource pool indexing;

and controlling resource group identification.

It should be noted that, in the beam failure recovery method provided in the embodiment of the present application, the execution subject may be a beam failure recovery apparatus, or a control module in the beam failure recovery apparatus for executing the beam failure recovery method. In the embodiment of the present application, a beam failure recovery method executed by a beam failure recovery apparatus is taken as an example, and the beam failure recovery apparatus provided in the embodiment of the present application is described.

Fig. 4 is a structural diagram of a beam failure recovery apparatus according to an embodiment of the present application, and as shown in fig. 4, the embodiment provides a beam failure recovery apparatus including:

Further, the at least two sets of BFD RSs comprise at least one of:

a set of BFD RSs corresponding to one or more cells.

Further, the TRP may be indicated by at least one of:

controlling resource pool indexing;

and controlling resource group identification.

Further, the at least two BFD RS sets include a first BFD RS set and a second BFD RS set, where the first BFD RS set and the second BFD RS set correspond to different TRPs of a first cell, and the beam failure condition is that a beam failure occurs in the first BFD RS set or the second BFD RS set;

the sending target beam failure recovery request BFRQ includes any one of:

transmitting the target BFRQ on a most recent available uplink grant;

under the condition that only one physical uplink control channel PUCCH used for sending the beam failure recovery request is configured in the cell group where the first cell is located, sending the target BFRQ through the PUCCH;

when a plurality of PUCCHs used for sending beam failure recovery requests are configured in a cell group in which the first cell is located, the target BFRQ is sent through a PUCCH associated with a failed or non-failed BFD RS set corresponding to TRP of the first cell;

and under the condition that the network side equipment is not configured with the non-contention-based random access CFRA, transmitting the target BFRQ through the contention-based random access CBRA.

Further, the at least two BFD RS sets include a first BFD RS set and a second BFD RS set, where the first BFD RS set and the second BFD RS set correspond to different TRPs of the first cell, the beam failure condition includes that the first BFD RS set fails to generate a beam, and the terminal is in a beam failure recovery request process in which the second BFD RS set fails to generate a beam;

the first cell is a main cell, and the target BFRQ comprises beam failure recovery information of a first BFD RS set;

transmitting the target BFRQ on a most recent available uplink grant;

Correspondingly, the sending module is configured to, when a beam failure occurs in the first BFD RS set and a BFRQ corresponding to the second BFD RS set is not sent on the PUSCH, continue or interrupt execution of a beam failure recovery request process corresponding to the second BFD RS set, and send the target BFRQ through the CBRA;

when the first BFD RS set has beam failure, the BFRQ corresponding to the second BFD RS set is already sent on a PUSCH, and the PUSCH is not multiplexed with an uplink shared transmission channel (UL-SCH), the beam failure recovery request process corresponding to the second BFD RS set is continuously executed or interrupted, and the target BFRQ is sent through a CBRA;

the target BFRQ also includes beam failure recovery information for the second set of BFD RSs.

Further, the at least two BFD RS sets include a first BFD RS set and a second BFD RS set, where the first BFD RS set and the second BFD RS set correspond to different TRPs of the first cell, the beam failure condition includes that the first BFD RS set has beam failure, and the terminal is in a beam failure recovery request process where the second BFD RS set has beam failure;

the first cell is an auxiliary cell, and the target BFRQ comprises beam failure recovery information of a first BFD RS set;

transmitting the target BFRQ on a most recent available uplink grant;

transmitting the target BFRQ through a nearest PUCCH associated with the first BFD RS set when a plurality of PUCCHs for transmitting a beam failure recovery request are configured in a cell group in which the first cell is located;

configuring a plurality of PUCCHs for sending beam failure recovery requests in a cell group where the first cell is located, and sending the target BFRQ through a latest PUCCH associated with a first BFD RS set or a second BFD RS set under the condition that a terminal receives BFRR corresponding to the second BFD RS set;

Correspondingly, the sending module is configured to, when a beam failure occurs in the first BFD RS set and a BFRQ corresponding to the second BFD RS set is not sent on a PUSCH, or when a beam failure occurs in the first BFD RS set, a BFRQ corresponding to the second BFD RS set is already sent on a PUSCH and the PUSCH is not multiplexed with an uplink shared transport channel UL-SCH, continue to execute or interrupt execution of a beam failure recovery request procedure corresponding to the second BFD RS set, and send the target BFRQ through any one of:

transmitting the target BFRQ on a most recent available uplink grant;

when a PUCCH used for sending the beam failure recovery request is configured in a cell group in which the first cell is located, the target BFRQ is sent through the PUCCH;

Correspondingly, the target BFRQ includes at least one of an identifier of the first BFR RS set, an identifier of the second BFD RS set, new beam information corresponding to the first BFD RS set, and new beam information corresponding to the second BFD RS set.

Correspondingly, the resetting module is configured to reset the TCI state of the CORESET associated with the first BFD RS set and/or reset the TCI state of the CORESET associated with the second BFD RS set according to the target beam information.

Further, the beam failure condition includes that the first set of BFD RSs and the second set of BFD RSs have beam failures at the same time;

the first cell is a primary cell;

the terminal sends the target beam failure recovery request BFRQ, which comprises the following steps: the target BFRQ is sent over the CBRA.

the first cell is a secondary cell;

transmitting the target BFRQ on a most recent available uplink grant;

Further, the at least two BFD RS sets include a first BFD RS set and a second BFD RS set, where the first BFD RS set and the second BFD RS set correspond to different TRPs of a first cell, and a third BFD RS set corresponds to the first cell;

accordingly, the beam failure condition includes at least one of:

a beam failure occurs in the third BFD RS set;

Further, the at least two BFD RS sets include a first BFD RS set and a second BFD RS set, the first BFD RS set and the second BFD RS set correspond to different TRPs of a first cell, a third BFD RS set corresponds to the first cell, the first cell is a master cell,

under the condition that the CFRA is configured on the network side equipment, sending a target BFRQ through the CFRA;

and in the case that the CFRA is not configured by the network side equipment, transmitting the target BFRQ through the CBRA.

Further, the at least two BFD RS sets include a first BFD RS set and a second BFD RS set, the first BFD RS set and the second BFD RS set correspond to different TRPs of a first cell, a third BFD RS set corresponds to the first cell, the beam failure condition includes that the third BFD RS set has beam failure, and the first BFD RS set and the second BFD RS set have beam failure before the third BFD RS set has beam failure;

correspondingly, the sending module is configured to:

interrupting the beam failure recovery request process corresponding to the first BFD RS set and the second BFD RS set respectively, and sending the target BFRQ through a CFRA, or a CBRA, or an available uplink authorization, or a PUCCH corresponding to the third BFD RS set;

or,

under the condition that the beam failure recovery request process corresponding to the first BFD RS set conflicts with the beam failure recovery request process corresponding to the third BFD RS set, interrupting the beam failure recovery request process corresponding to the first BFD RS set, and transmitting the target BFRQ on an uplink authorization for transmitting the BFRQ corresponding to the second BFD RS set, wherein the target BFRQ also comprises beam failure recovery information of the second BFD RS set;

or, when the beam failure recovery request process corresponding to the first BFD RS set conflicts with the beam failure recovery request process corresponding to the third BFD RS set, interrupting the beam failure recovery request process corresponding to the first BFD RS set, and sending the target BFRQ through CFRA, or CBRA, or available uplink grant, or PUCCH corresponding to the third BFD RS set;

or,

transmitting the target BFRQ on an uplink grant which transmits a BFRQ corresponding to the second BFD RS set, wherein the target BFRQ further comprises beam failure recovery information of the first BFD RS set and/or beam failure recovery information of the second BFD RS set;

or,

sending a BFRQ corresponding to the first BFD RS set through a CFRA, or a CBRA, or an available uplink grant, or a PUCCH corresponding to the first BFD RS set, and transmitting the target BFRQ on the uplink grant transmitting the BFRQ corresponding to the second BFD RS set, where the target BFRQ may further include beam failure recovery information of the second BFD RS set;

or, the BFRQ corresponding to the first BFD RS set and the BFRQ corresponding to the second BFD RS set are sent through CFRA, or CBRA, or available uplink grant, or the PUCCH corresponding to the first BFD RS set and the second BFD RS set, respectively, and the target BFRQ is sent through CFRA, or CBRA, or available uplink grant, or the PUCCH corresponding to the third BFD RS set.

accordingly, the reset module is configured to:

or,

under the condition that the terminal interrupts the beam failure recovery request process corresponding to the first BFD RS set and continues to execute the beam failure recovery request process corresponding to the second BFD RS set, if first new beam information carried by BFRQ associated with the second BFD RS set and the target beam information correspond to the same TRP, resetting the TCI state of the CORESET corresponding to the target beam information or the TCI states of all CORESETs corresponding to the first cell according to the target beam information;

or,

under the condition that the terminal interrupts the beam failure recovery request process corresponding to the first BFD RS set and continues to execute the beam failure recovery request process corresponding to the second BFD RS set, if first new beam information carried by a BFRQ associated with the second BFD RS set and the target beam information correspond to different TRPs, resetting the TCI state of the CORESET corresponding to the target beam information according to the target beam information, and resetting the TCI state of the CORESET corresponding to the target beam information according to the first new beam information;

or, under the condition that the terminal continues to execute the beam failure recovery request process corresponding to the first BFD RS set and continues to execute the beam failure recovery request process corresponding to the second BFD RS set, resetting the TCI state of the CORESET corresponding to the new beam information according to the new beam information carried by the BFRQ associated with the first BFD RS set and the second BFD RS set, and resetting the TCI state of the CORESET corresponding to the new beam information according to the target beam information;

or,

under the condition that the terminal continues to execute the beam failure recovery request process corresponding to the first BFD RS set and continues to execute the beam failure recovery request process corresponding to the second BFD RS set, resetting the TCI state of the CORESET corresponding to the terminal according to the target beam information, or resetting the TCI states of all CORESETs corresponding to the first cell;

or,

under the condition that the terminal continues to execute the beam failure recovery request process corresponding to the first BFD RS set and continues to execute the beam failure recovery request process corresponding to the second BFD RS set, selecting second new beam information and third new beam information from the candidate new beam information according to a third preset rule to respectively reset the TCI states of the CORESETs corresponding to the second new beam information and the third new beam information, or resetting the TCI states of all CORESETs corresponding to the first cell, wherein the second new beam information and the third new beam information are associated with different BFD RS sets;

Further, the at least two BFD RS sets include a first BFD RS set and a second BFD RS set, where the first BFD RS set and the second BFD RS set correspond to different TRPs of a first cell, a third BFD RS set corresponds to the first cell, the first cell is an auxiliary cell, and the target BFRQ includes beam failure recovery information of the third BFD RS set;

the terminal sends the target beam failure recovery request BFRQ, which comprises any item of the following items:

transmitting the target BFRQ on a most recent available uplink grant;

transmitting the target BFRQ through a PUCCH when only one PUCCH for transmitting a beam failure recovery request is configured in a cell group in which the first cell is located;

and under the condition that a plurality of PUCCHs used for sending the beam failure recovery request are configured in the cell group in which the first cell is positioned, selecting one PUCCH from the PUCCHs according to a first preset rule to send the target BFRQ.

Further, the at least two BFD RS sets include a first BFD RS set, a second BFD RS set, and a fourth BFD RS set, where the first BFD RS set and the second BFD RS set correspond to different TRPs of the first cell, and the fourth BFD RS set is a BFD RS set corresponding to the second cell, or a BFD RS set corresponding to a TRP in the second cell; the second cell is in the same cell group as the first cell.

Further, the at least two BFD RS sets include a first BFD RS set, a second BFD RS set, and a fourth BFD RS set, where the first BFD RS set and the second BFD RS set correspond to different TRPs of the first cell, and the beam failure condition includes that the first BFD RS set or the second BFD RS set has beam failure and the fourth BFD RS set has beam failure;

correspondingly, the fourth BFD RS set is a BFD RS set corresponding to a second cell, and the target BFRQ includes beam failure recovery information of the fourth BFD RS set;

sending a BFRQ corresponding to a target BFD RS set and the target BFRQ on the latest available uplink authorization, wherein the target BFD RS set is a first BFD RS set or a second BFD RS set which generates beam failure;

Further, the second preset rule includes any one of:

selecting a nearest PUCCH from a plurality of PUCCHs;

Further, the at least two BFD RS sets include a first BFD RS set, a second BFD RS set, and a fourth BFD RS set, where the first BFD RS set and the second BFD RS set correspond to different TRPs of the first cell, and the beam failure condition includes that the first BFD RS set or the second BFD RS set has beam failure, and the fourth BFD RS set has beam failure;

transmitting the target BFRQ on a most recent available uplink grant;

when a plurality of PUCCHs used for transmitting the beam failure recovery request are configured in the cell group in which the second cell is located, one or at least two target PUCCHs are selected from the plurality of PUCCHs to transmit the target BFRQ, wherein the target PUCCHs comprise the PUCCHs corresponding to the primary cell in the cell group in which the second cell is located;

the target BFRQ comprises beam failure recovery information of the fourth BFD RS set and beam failure recovery information of a target BFD RS set, wherein the target BFD RS set is a first BFD RS set or a second BFD RS set which generates beam failure;

and the resetting module is used for resetting the TCI state of the CORESET associated with the BFD RS set with beam failure according to the target beam information carried by the target BFRQ.

In this embodiment, the terminal measures at least two beam failure detection reference signal BFD RS sets configured by the network side device to obtain a measurement result; under the condition that the at least two BFD RS sets meet the beam failure condition according to the measurement result, the terminal sends a target BFRQ; the terminal receives BFRR corresponding to the target BFRQ; and the terminal resets the TCI states of partial channels or all channels according to the target beam information carried by the target BFRQ and/or resets the configuration parameters of uplink power control according to the target beam information. And under the condition that the terminal detects that the at least two BFD RS sets meet the beam failure condition, the terminal sends a target BFRQ to the network side equipment, so that the network side equipment and the terminal can quickly recover the interrupted beam link, and the reliability of data transmission is improved.

The beam failure recovery apparatus in the embodiment of the present application may be an apparatus, an apparatus or an electronic device having an operating system, or a component, an integrated circuit, or a chip in a terminal. The device or the electronic equipment can be a mobile terminal or a non-mobile terminal. For example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.

The beam failure recovery apparatus provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 1, and achieve the same technical effect, and is not described here again to avoid repetition.

As shown in fig. 5, an embodiment of the present application further provides a beam failure recovery apparatus 500, including:

a configuration module 501, configured to configure at least two beam failure detection reference signal BFD RS sets for a terminal;

a receiving module 502, configured to receive a target beam failure recovery request BFRQ;

a sending module 503, configured to send a beam failure recovery response BFRR corresponding to the target BFRQ.

Further, the at least two sets of BFD RSs comprise at least one of:

a set of BFD RSs corresponding to one or more cells.

Further, the TRP may be indicated by at least one of:

controlling resource pool indexing;

and controlling resource group identification.

Further, the at least two sets of BFD RSs may further include a third set of BFD RSs corresponding to the first cell.

Further, the at least two BFD RS sets further include a fourth BFD RS set, where the fourth BFD RS set is a BFD RS set corresponding to the second cell, or a BFD RS set corresponding to the TRP in the second cell; the second cell is in the same cell group as the first cell.

In this embodiment, a network side device configures at least two beam failure detection reference signal BFD RS sets for a terminal; receiving a target beam failure recovery request BFRQ; and sending a beam failure recovery response BFRR corresponding to the target BFRQ, so that the terminal resets the Transmission Configuration Indication (TCI) state of a part of channels or all channels according to the target beam information carried by the target BFRQ, and/or resets the Configuration parameters of uplink power control according to the target beam information. The process can enable the network side equipment and the terminal to quickly recover the interrupted beam link, and improve the reliability of data transmission.

Optionally, as shown in fig. 6, an embodiment of the present application further provides a communication device 600, which includes a processor 601, a memory 602, and a program or an instruction stored in the memory 602 and executable on the processor 601, for example, when the communication device 600 is a terminal, the program or the instruction is executed by the processor 601 to implement the processes of the embodiment of the beam failure recovery method shown in fig. 2, and the same technical effect can be achieved. When the communication device 600 is a network-side device, the program or the instruction is executed by the processor 601 to implement the processes of the embodiment of the beam failure recovery method shown in fig. 3, and the same technical effect can be achieved, and for avoiding repetition, the details are not described here again.

The embodiment of the application further provides a terminal, which includes a processor and a communication interface, wherein the processor is configured to measure at least two BFD RS sets configured by a network side device, obtain a measurement result, and reset a TCI state of a transmission configuration indication of a part of channels or all channels according to target beam information carried by the target BFRQ, and/or reset a configuration parameter for uplink power control according to the target beam information, and the communication interface is configured to send a target BFD failure recovery request BFRQ if it is determined that the at least two BFD RS sets satisfy a beam failure condition according to the measurement result; and receiving a beam failure recovery response BFRR corresponding to the target BFRQ. The terminal embodiment corresponds to the terminal-side method embodiment, and all implementation processes and implementation manners of the method embodiment can be applied to the terminal embodiment and can achieve the same technical effect. Specifically, fig. 7 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application.

The terminal 100 includes but is not limited to: at least some of the radio frequency unit 101, the network module 102, the audio output unit 103, the input unit 104, the sensor 105, the display unit 106, the user input unit 107, the interface unit 108, the memory 109, and the processor 110.

Those skilled in the art will appreciate that the terminal 100 may further include a power supply (e.g., a battery) for supplying power to various components, and the power supply may be logically connected to the processor 110 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The terminal structure shown in fig. 7 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and will not be described again here.

It should be understood that, in the embodiment of the present application, the input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the Graphics Processing Unit 1041 processes image data of a still picture or a video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 107 includes a touch panel 1071 and other input devices 1072. The touch panel 1071 is also referred to as a touch screen. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In the embodiment of the present application, the radio frequency unit 101 receives downlink data from a network side device and then processes the downlink data to the processor 110; in addition, the uplink data is sent to the network side equipment. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 109 may be used to store software programs or instructions as well as various data. The memory 109 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 109 may include a high-speed random access Memory, and may further include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 110 may include one or more processing units; alternatively, the processor 110 may integrate an application processor, which primarily handles operating systems, user interfaces, and applications or instructions, etc., and a modem processor, which primarily handles wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The radio frequency unit 101 is configured to, when it is determined that the at least two BFD RS sets satisfy the beam failure condition according to the measurement result, send a target beam failure recovery request BFRQ to the terminal, and receive a beam failure recovery response BFRR corresponding to the target BFRQ.

The processor 110 is configured to measure at least two BFD RS sets configured by the network side device, obtain a measurement result, and reset a TCI state of a transmission configuration indication of a part of channels or all channels according to target beam information carried by the target BFRQ, and/or reset configuration parameters for uplink power control according to the target beam information.

In this implementation, the terminal measures at least two beam failure detection reference signal BFD RS sets configured by the network side device to obtain a measurement result; under the condition that the at least two BFD RS sets meet the beam failure condition according to the measurement result, the terminal sends a target beam failure recovery request BFRQ; the terminal receives a beam failure recovery response BFRR corresponding to the target BFRQ; and the terminal resets the Transmission Configuration Indication (TCI) state of partial channels or all channels according to the target beam information carried by the target BFRQ and/or resets the configuration parameters of uplink power control according to the target beam information. The above process can enable the terminal to quickly recover the interrupted beam link, and improve the reliability of data transmission.

Further, the at least two sets of BFD RSs comprise at least one of:

a set of BFD RSs corresponding to one or more cells.

Further, the beam failure condition is that a beam failure occurs in the first set of BFD RSs or the second set of BFD RSs;

transmitting the target BFRQ on a most recent available uplink grant;

Further, the beam failure condition includes that a beam failure occurs in the first BFD RS set, and the terminal is in a beam failure recovery request process in which a beam failure occurs in the second BFD RS set;

transmitting the target BFRQ on a most recent available uplink grant;

transmitting the target BFRQ through a PUCCH associated with the first BFD RS set or the second BFD RS set under the condition that a plurality of PUCCHs used for transmitting beam failure recovery requests are configured in a cell group in which the first cell is positioned;

Further, the radio frequency unit 101 is configured to:

when the first BFD RS set fails to generate wave beam and the BFRQ corresponding to the second BFD RS set is not sent on a PUSCH, continuing or interrupting the wave beam failure recovery request process corresponding to the second BFD RS set, and sending the target BFRQ through a CBRA;

Further, the radio frequency unit 101 is configured to:

when the first BFD RS set has a beam failure and the BFRQ corresponding to the second BFD RS set is not sent on the PUSCH, or when the first BFD RS set has a beam failure and the BFRQ corresponding to the second BFD RS set has been sent on the PUSCH and the PUSCH is not multiplexed with the uplink shared transport channel UL-SCH, continuing or interrupting the execution of the beam failure recovery request procedure corresponding to the second BFD RS set, and sending the target BFRQ through any one of:

transmitting the target BFRQ on a most recent available uplink grant;

the first cell is a primary cell;

the terminal sending the target beam failure recovery request BFRQ comprises the following steps:

transmitting the target BFRQ through the CBRA.

the first cell is a secondary cell;

transmitting the target BFRQ on a most recent available uplink grant;

Further, the target BFRQ includes at least one of an identifier of the first BFR RS set, an identifier of the second BFD RS set, new beam information corresponding to the first BFD RS set, and new beam information corresponding to the second BFD RS set.

Further, the processor 110 is configured to reset the TCI state of the CORESET associated with the first BFD RS set and/or reset the TCI state of the CORESET associated with the second BFD RS set according to the target beam information.

Further, the at least two sets of BFD RSs further include a third set of BFD RSs corresponding to the first cell;

the beam failure condition includes at least one of:

a beam failure occurs in the third BFD RS set;

Further, the first cell is a primary cell,

and when the CFRA is not configured in the network side equipment, the target BFRQ is transmitted through the CBRA.

Further, the beam failure condition includes that the third set of BFD RSs have beam failure, and the first set of BFD RSs and the second set of BFD RSs have beam failure before the third set of BFD RSs have beam failure;

a radio frequency unit 101, configured to:

or,

transmitting the target BFRQ on an uplink grant transmitting a BFRQ corresponding to the second BFD RS set, wherein the target BFRQ further comprises beam failure recovery information of the first BFD RS set and/or beam failure recovery information of the second BFD RS set;

or,

or respectively sending the BFRQ corresponding to the first BFD RS set and the BFRQ corresponding to the second BFD RS set through CFRA, or CBRA, or available uplink grant, or the PUCCH corresponding to the first BFD RS set and the second BFD RS set, and sending the target BFRQ through CFRA, or CBRA, or available uplink grant, or the PUCCH corresponding to the third BFD RS set.

the processor 110 is configured to:

or,

Further, the first cell is an auxiliary cell, and the target BFRQ includes beam failure recovery information of the third BFD RS set;

transmitting the target BFRQ on a most recent available uplink grant;

the second cell is in the same cell group as the first cell.

Further, the beam failure condition includes that a beam failure occurs in the first BFD RS set or the second BFD RS set, and a beam failure occurs in a fourth BFD RS set;

the fourth BFD RS set is a BFD RS set corresponding to a second cell, and the target BFRQ comprises beam failure recovery information of the fourth BFD RS set;

Further, the second preset rule includes any one of:

selecting a nearest PUCCH from a plurality of PUCCHs;

Further, the beam failure condition includes that a beam failure occurs in the first BFD RS set or the second BFD RS set, and a beam failure occurs in the fourth BFD RS set;

transmitting the target BFRQ on a most recent available uplink grant;

Further, the beam failure condition includes that the first set of BFD RSs or the second set of BFD RSs have beam failure, and the fourth set of BFD RSs have beam failure;

the processor 101 is configured to reset a TCI state of a CORESET associated with a BFD RS set in which a beam failure occurs according to target beam information carried by the target BFRQ.

Further, the TRP may be indicated by at least one of:

controlling resource pool indexing;

and controlling resource group identification.

The embodiment of the application further provides a network side device, which includes a processor and a communication interface, wherein the processor is configured to configure at least two beam failure detection reference signal BFD RS sets for the terminal, and the communication interface is configured to receive a target beam failure recovery request BFRQ and send a beam failure recovery response BFRR corresponding to the target BFRQ. The embodiment of the network side device corresponds to the embodiment of the method of the network side device, and all implementation processes and implementation manners of the embodiment of the method can be applied to the embodiment of the network side device and can achieve the same technical effect.

Specifically, the embodiment of the application further provides a network side device. As shown in fig. 8, the network-side device 800 includes: antenna 81, radio frequency device 82, baseband device 83. The antenna 81 is connected to a radio frequency device 82. In the uplink direction, the rf device 82 receives information through the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes information to be transmitted and transmits the information to the rf device 82, and the rf device 82 processes the received information and transmits the processed information through the antenna 81.

The above band processing means may be located in the baseband device 83, and the method performed by the network side device in the above embodiment may be implemented in the baseband device 83, where the baseband device 83 includes a processor 84 and a memory 85.

The baseband device 83 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 8, wherein one chip, for example, the processor 84, is connected to the memory 85 to call up the program in the memory 85 to perform the network device operation shown in the above method embodiment.

The baseband device 83 may further include a network interface 86 for exchanging information with the radio frequency device 82, such as a Common Public Radio Interface (CPRI).

Specifically, the network side device of the embodiment of the present invention further includes: the instructions or programs stored in the memory 85 and capable of being executed on the processor 84, the processor 84 calls the instructions or programs in the memory 85 to execute the method executed by each module shown in fig. 5, and achieve the same technical effect, and are not described herein for avoiding repetition.

An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the foregoing beam failure recovery method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the foregoing beam failure recovery method embodiment, and can achieve the same technical effect, and is not described here again to avoid repetition.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A method for beam failure recovery, comprising:

the terminal measures at least two wave beam failure detection reference signal BFD RS sets configured by the network side equipment to obtain a measuring result;

2. The method of claim 1, wherein the at least two sets of BFD RSs comprise at least one of:

a set of BFD RSs corresponding to one or more cells.

3. The method of claim 1, wherein the at least two sets of BFD RSs comprise a first set of BFD RSs and a second set of BFD RSs, wherein the first set of BFD RSs and the second set of BFD RSs correspond to different TRPs of a first cell.

4. The method of claim 3, wherein the beam failure condition is that a beam failure occurs in the first set of BFD RSs or the second set of BFD RSs;

transmitting the target BFRQ on a most recent available uplink grant;

under the condition that a plurality of PUCCHs used for sending beam failure recovery requests are configured in a cell group where the first cell is located, the target BFRQ is sent through the PUCCH associated with a failed or non-failed BFD RS set in the first cell;

under the condition that the network side equipment configures non-contention-based random access CFRA, sending the target BFRQ through the CFRA;

5. The method of claim 3, wherein the beam failure condition comprises a beam failure of the first set of BFD RSs, and wherein the terminal is in a beam failure recovery request process for the second set of BFD RSs with a beam failure;

transmitting the target BFRQ on a most recent available uplink grant;

6. The method of claim 3, wherein the beam failure condition comprises that the first set of BFD RSs has a beam failure, and wherein the terminal is in a beam failure recovery request process for which the second set of BFD RSs has a beam failure;

transmitting the target BFRQ on a most recent available uplink grant;

7. The method of claim 5, wherein the terminal sends a target beam failure recovery request (BFRQ) if it is determined from the measurements that the at least two sets of BFD RSs satisfy a beam failure condition, comprising:

8. The method of claim 6, wherein the transmitting, by the terminal, a target beam failure recovery request (BFRQ) in case it is determined from the measurements that the at least two sets of BFD RSs satisfy the beam failure condition comprises:

transmitting the target BFRQ on a most recent available uplink grant;

under the condition that a plurality of PUCCHs used for sending the beam failure recovery request are configured in the cell group where the first cell is located, selecting one PUCCH from the plurality of PUCCHs according to a fourth preset rule to send the target BFRQ;

9. The method of claim 3, wherein the beam failure condition comprises a concurrent beam failure of the first set of BFD RSs and the second set of BFD RSs;

the first cell is a primary cell;

transmitting the target BFRQ through the CBRA.

10. The method of claim 3, wherein the beam failure condition comprises a concurrent beam failure of the first set of BFD RSs and the second set of BFD RSs;

the first cell is a secondary cell;

transmitting the target BFRQ on a most recent available uplink grant;

11. The method according to claim 5 or 6, wherein the target BFRQ comprises at least one of:

an identification of a first set of BFR RSs;

identification of a second set of BFD RSs;

new beam information corresponding to the first BFD RS set;

and new beam information corresponding to the second BFD RS set.

12. The method according to claim 5 or 6, wherein the terminal resets a Transmission Configuration Indication (TCI) state of a part of or all channels according to target beam information carried by the target BFRQ, and/or resets configuration parameters for uplink power control according to the target beam information, and the method comprises:

and the terminal resets the TCI state of the CORESET associated with the first BFD RS set and/or resets the TCI state of the CORESET associated with the second BFD RS set according to the target beam information.

13. The method of claim 3, wherein the at least two sets of BFD RSs further comprise a third set of BFD RSs corresponding to the first cell;

the beam failure condition comprises at least one of:

a beam failure occurs in the third BFD RS set;

14. The method of claim 13, wherein the first cell is a primary cell,

15. The method of claim 13, wherein the beam failure condition comprises a beam failure of the third set of BFD RS, and wherein the first set of BFD RS and the second set of BFD RS have beam failures before the beam failure of the third set of BFD RS;

or,

16. The method of claim 13, wherein the beam failure condition comprises a beam failure of the third set of BFD RS, and wherein the first set of BFD RS and the second set of BFD RS have beam failures before the beam failure of the third set of BFD RS;

or,

under the condition that the terminal interrupts the beam failure recovery request process corresponding to the first BFD RS set and continues to execute the beam failure recovery request process corresponding to the second BFD RS set, if first new beam information carried by BFRQ associated with the second BFD RS set and the target beam information correspond to different TRPs, resetting the TCI state of the CORESET corresponding to the target beam information according to the target beam information, and resetting the TCI state of the CORESET corresponding to the TCI state according to the first new beam information;

or,

17. The method of claim 13, wherein the first cell is a secondary cell, wherein the target BFRQ includes beam failure recovery information for the third set of BFD RSs;

transmitting the target BFRQ on a most recent available uplink grant;

18. The method of claim 3, wherein the at least two sets of BFD RSs further comprise a fourth set of BFD RSs, wherein the fourth set of BFD RSs is a set of BFD RSs corresponding to a second cell, or a set of BFD RSs corresponding to TRPs in the second cell;

the second cell is in the same cell group as the first cell.

19. The method of claim 18, wherein the beam failure condition comprises a beam failure of the first or second set of BFD RSs, and a beam failure of a fourth set of BFD RSs;

sending a BFRQ corresponding to a target BFD RS set and the target BFRQ on the latest available uplink authorization, wherein the target BFD RS set is a first BFD RS set or a second BFD RS set which has beam failure;

20. The method according to claim 19, wherein the second preset rule comprises any one of the following:

selecting a nearest PUCCH from a plurality of PUCCHs;

21. The method of claim 18, wherein the beam failure condition comprises a beam failure of the first set of BFD RSs or the second set of BFD RSs, and a beam failure of the fourth set of BFD RSs;

the fourth BFD RS set is a BFD RS set corresponding to TRPs of a second cell, the second cell comprises at least two TRPs, and the target BFRQ comprises beam failure recovery information of the fourth BFD RS set and beam failure recovery information of the target BFD RS set;

transmitting the target BFRQ on a most recent available uplink grant;

and in the case that the network side equipment is not configured with non-contention-based random access CFRA, transmitting the target BFRQ based on CBRA.

22. The method of claim 18, wherein the beam failure condition comprises a beam failure of the first set of BFD RSs or the second set of BFD RSs, and a beam failure of the fourth set of BFD RSs;

the terminal resets the Transmission Configuration Indication (TCI) state of a part of channels or all channels according to the target beam information carried by the target BFRQ, and/or resets the configuration parameters of uplink power control according to the target beam information, and the method comprises the following steps:

23. The method of claim 2, wherein the TRP is indicated by at least one of:

controlling resource pool indexing;

and controlling resource group identification.

24. A method for beam failure recovery, comprising:

25. The method of claim 24, wherein the at least two sets of BFD RSs comprise at least one of:

a set of BFD RSs corresponding to one or more cells.

26. The method of claim 24, wherein the at least two sets of BFD RSs comprise a first set of BFD RSs and a second set of BFD RSs, wherein the first set of BFD RSs and the second set of BFD RSs correspond to different TRPs of a first cell.

27. The method of claim 26, wherein the at least two sets of BFD RSs further comprise a third set of BFD RSs corresponding to the first cell.

28. The method of claim 26, wherein the at least two sets of BFD RSs further comprise a fourth set of BFD RSs, the fourth set of BFD RSs corresponding to a second cell, or a set of BFD RSs corresponding to TRPs in the second cell;

the second cell is in the same cell group as the first cell.

29. The method of claim 25, wherein the TRP is indicated by at least one of the following:

controlling resource pool indexing;

and controlling resource group identification.

30. A beam failure recovery apparatus, comprising:

the device comprises an acquisition module, a detection module and a detection module, wherein the acquisition module is used for measuring at least two wave beam failure detection reference signal BFD RS sets configured by network side equipment to obtain a measurement result;

31. The apparatus of claim 30, wherein the at least two sets of BFD RSs comprise at least one of:

a set of BFD RSs corresponding to one or more cells.

32. The apparatus of claim 30, wherein the at least two sets of BFD RSs comprise a first set of BFD RSs and a second set of BFD RSs, the first set of BFD RSs and the second set of BFD RSs corresponding to different TRPs of a first cell.

33. A beam failure recovery apparatus, comprising:

34. The apparatus of claim 33, wherein the at least two sets of BFD RSs comprise at least one of:

a BFD RS set of one or more transmitting receiving points TRP corresponding to different cells;

a set of BFD RSs corresponding to one or more cells.

35. The apparatus of claim 33, wherein the at least two sets of BFD RSs comprise a first set of BFD RSs and a second set of BFD RSs, wherein the first set of BFD RSs and the second set of BFD RSs correspond to different TRPs of a first cell.

36. A terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the beam failure recovery method according to any one of claims 1 to 23.

37. A network-side device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the beam failure recovery method according to any one of claims 24 to 29.

38. A readable storage medium, on which a program or instructions are stored, which program or instructions, when executed by a processor, carry out the steps of the beam failure recovery method according to any one of claims 1-23, or carry out the steps of the beam failure recovery method according to any one of claims 24 to 29.